Support for network interface alias?

English Network/Internet
1

We have a bonded interface between two physical interfaces. On this interface, we have the MTU set to 9000 for traffic passing between servers. We need to support being able to also have traffic not intended to go between the nodes to have an MTU setting of 1500.

When we are using VLANs (obviously, this is recommended), there’s no problem. We can specify the MTU size for just that VLAN interface and then server-server traffic gets its correct MTU size.

But, we have the requirement to also support the environment wherein the network is untagged and have server-server traffic still use the 9000 MTU, and have other traffic that may be routed out use only an MTU of 1500.

The initial thought was to go ahead and configure an aliased interface to support the alternate MTU setting. This works fine when running the IP commands directly. It doesn’t appear that we can configure this using Wicked for it to persist the configuration. Am I wrong? Is there another recommended way to achieve this behavior?

Thanks!

Mark

2

You forgot to show these commands. MTU is the property of an interface, no amount of aliases for this interface is going to change it.

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